Patents
Patents for H01H 83 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current (5,042)
12/1998
12/08/1998US5847908 Machine having current loss shutdown circuit with low resistance relay
11/1998
11/28/1998CA2238901A1 Circuit interrupteur with covered accessory case, adjustable under voltage relay, self-retaining collar and one-piece rail attachment
11/26/1998WO1998053473A1 Kinematic system for actuating the movable contact of automatic electric breakers
11/25/1998CN1199918A Overvoltage protective module
11/24/1998US5841616 Module for use with a miniature circuit breaker
11/18/1998CN2297814Y Three phase open-phase protection contactor
11/17/1998US5836441 Circuit breaker accessory module actuators
11/11/1998EP0877456A1 Surge arrester protector
11/10/1998US5835323 Electrical connector with breaking current for leak
11/10/1998US5834996 Electric switch having undervoltage tripping
11/09/1998CA2236701A1 Overvoltage protective module
11/04/1998EP0769199B1 Operation of residual current devices
11/04/1998CN2296575Y High voltage live lock-up controller
11/03/1998US5831509 Circuit breaker with sense bar to sense current from voltage drop across bimetal
10/1998
10/29/1998DE19717236A1 Electric switch apparatus for opening and closing electric contact
10/28/1998CN2296086Y 电机保护器 Motor protection
10/28/1998CN2296084Y Electric leakage protector
10/28/1998CN2296074Y Knife switch with electronic protector for phase-off
10/21/1998EP0769198B1 Electrically controlled tripping mechanism
10/21/1998CN1196565A 漏电断路器 Leakage circuit breakers
10/20/1998US5825602 Overcurrent trip device
10/20/1998US5825273 Differential thermal tripping device with bimetallic strips
10/07/1998EP0868736A2 Thermal triggering system
10/07/1998EP0593688B1 Automatic miniature circuit breaker with z-axis assemblable trip mechanism
10/07/1998CN2293916Y Open-phase automatic power-off AC contact device
10/07/1998CN1195180A 电路断路器 Circuit breaker
09/1998
09/30/1998EP0706712B1 Ground fault module conductors and base therefor
09/30/1998CN2293147Y Multifunctional phase- and amplitude-discriminating electric leakage protective device
09/24/1998WO1998042001A1 Earth leakage circuit breaker
09/16/1998EP0799516B1 Electrical circuit breaker
09/15/1998US5808848 Digital circuit interrupter shunt trip accessory module
09/09/1998EP0791178B1 Current transducers
09/02/1998EP0862255A1 Disconnector for surge arrester
09/01/1998US5801912 Circuit interrupting device
08/1998
08/26/1998EP0860927A1 Protection circuit arrangement for surge arrester
08/26/1998EP0860918A1 Overvoltage arrester device
08/19/1998EP0859395A2 Low voltage circuit breaker with optionally mounted measuring transducer
08/13/1998WO1998035372A1 Modular accessory mechanical lockout mechanism
08/13/1998CA2733821A1 Integrated protection system for electrical distribution
08/12/1998EP0782761B1 Differential current protective switch with special core material
08/11/1998US5793121 Low resistance current interrupter
08/06/1998WO1998034260A1 Switching device with under-voltage auxiliary release
07/1998
07/30/1998WO1998033255A1 Reverse battery protecting device for the on-board electric network of a vehicle
07/23/1998WO1998032144A1 Load disconnecting switch, in particular for the load circuit of a motor vehicle battery
07/23/1998DE19702116A1 Schutzvorrichtung gegen Falschpolung im elektrischen Bordnetz eines Fahrzeuges Guard against wrong in the electrical system of a vehicle
07/22/1998CN2286533Y Relay for anti-fraudulent-use of electricity
07/21/1998US5784243 Industrial-rated circuit breaker for high level overcurrent protection
07/21/1998US5783987 Pyrotechnic high-current safety fuse element
07/14/1998US5781387 To interrupt flow of current to electrical devices
06/1998
06/25/1998WO1998027564A1 Zero current circuit interruption
06/24/1998CN1185857A Current transformer, in particular for a fault current tripping device sensitive to pulsating currents and tripping device equipped with such a transformer
06/24/1998CN1185646A Earth leakage circuit-breaker
06/23/1998US5771145 Zero current circuit interruption
06/17/1998EP0847587A1 Power circuit-breaker with current transformers and data store
06/16/1998US5767762 Overcurrent relay having a bimetal a resetting member and an accelerating mechanism
06/09/1998US5762180 Retrofit switch actuator
05/1998
05/27/1998EP0844632A2 Contact arrangement for ground fault circuit interrupter
05/27/1998CN1182968A Breaker with breaker unit and processing, calibration and communication module
05/26/1998US5757597 Ground fault interrupter container combination
05/26/1998US5757254 Earth leakage breaker
05/20/1998EP0843332A1 Circuit breaker having a breaker block and modules for processing, calibration and indication
05/20/1998DE19703973C1 Switching device with under-voltage auxiliary trip e.g. for circuit breaker
05/13/1998CN1181847A Electrical differential protection appts. with a test circuit
05/06/1998CN2280997Y Leakage tripping device
05/06/1998CN2280996Y 电机保护器 Motor protection
05/06/1998CN1180911A Plug-in lock mechanism
05/06/1998CN1180909A Alarm and/or protector for procedure parameter
05/05/1998US5747980 Differential transformer correction by compensation
04/1998
04/22/1998EP0836743A1 Circuit breaker accessory module actuators
04/22/1998CN2279697Y Circuit breaker with leakage protector
04/15/1998CN1178995A Electric switch device
04/14/1998US5740003 Circuit breaker shunt trip accessory with mechanical override
04/08/1998CN2278295Y Phase-discriminating and amplitude-discriminating pulse type leakage protector
04/08/1998CN1178385A Method and device for regulating hot overload circuit breaker
04/01/1998EP0833357A2 Method for adjusting thermal overload trip device
03/1998
03/26/1998DE19741173A1 Automatic switch e.g. for LV power distribution circuits
03/25/1998CN2277136Y 保安开关 Security Switch
03/25/1998CN1177219A Electronic device with its input terminal and output terminal on same of its casing
03/25/1998CN1177195A Circuit breaker
03/24/1998US5731561 Power switch with an ARC quenching device
03/18/1998CN2276664Y Electromagnetic leakage and circuit breaker under-voltage action amplifying mechanism
03/18/1998CN1176476A Heat overload protector
03/11/1998EP0828276A2 Thermal overload protection
03/11/1998EP0828270A2 Electrical switch gear
03/11/1998EP0828268A2 Plug-in snap acting mechanism
03/11/1998EP0828267A2 Circuit breaker with forced opening
03/11/1998EP0828266A2 Contact force in auxiliary switches, adjusted without calibration
03/11/1998CN2276198Y AC contactor on-off controller with earth leakage protector
03/04/1998CN2275762Y Automatic disconnection switch for lead accumulator and service life increasing device
03/04/1998CN1175105A Electronic differential circuit breaker
03/04/1998CN1175073A Defferential electric protective device
03/04/1998CN1175072A Breaker
02/1998
02/26/1998DE19701933C1 Load current interrupter switch for vehicle battery
02/25/1998CN1174436A Earthleakage-current protection device
02/12/1998DE19732882A1 Modified fault current triple-pole circuit-breaker
02/04/1998EP0821830A1 Current transformer, in particular for a fault current tripping device sensitive to pulsating currents and tripping device equipped with such a transformer
02/03/1998US5714940 Bell alarm for system power breaker
01/1998
01/22/1998WO1998002896A1 Modular automatic electric breaker with optimization of used spaces
01/21/1998CN2273049Y Multifunctional protective switch for electric appliances
01/21/1998CN1171173A Electrical protective switch
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